--- title: Create an Explicit Hierarchy ms.custom: "" ms.date: "04/01/2016" ms.prod: sql ms.prod_service: "mds" ms.reviewer: "" ms.technology: master-data-services ms.topic: conceptual helpviewer_keywords: - "creating explicit hierarchies [Master Data Services]" - "explicit hierarchies, creating" ms.assetid: ba768393-6990-4eda-8cb0-d58cb3cfc2e2 author: lrtoyou1223 ms.author: lle --- # Create an Explicit Hierarchy (Master Data Services) [!INCLUDE[appliesto-ss-xxxx-xxxx-xxx-md-winonly](../includes/appliesto-ss-xxxx-xxxx-xxx-md-winonly.md)] In [!INCLUDE[ssMDSshort](../includes/ssmdsshort-md.md)], create an explicit hierarchy when you need a ragged hierarchy in which members can exist at any level. Explicit hierarchies contain members from a single entity. After you create an explicit hierarchy, you can add members to it in the **Explorer** functional area. ## Prerequisites To perform this procedure: - You must have permission to access the **System Administration** functional area. - You must be a model administrator. For more information, see [Administrators (Master Data Services)](../master-data-services/administrators-master-data-services.md). - The entity must be enabled for explicit hierarchies and collections. ### To create an explicit hierarchy 1. In [!INCLUDE[ssMDSmdm](../includes/ssmdsmdm-md.md)], click **System Administration**. 2. On the **Manage Model** page, select a model from the grid and then click **Entities**. 3. On the **Manage Entity** page, from the grid, select the row for the entity that you want to create an explicit hierarchy for. 4. Click **Explicit Hierarchies**. 5. On the **Manage Explicit Hierarchy** page, click **Add**. 6. In the **Name** box, type a name for the hierarchy. 7. Optionally, clear the **Mandatory hierarchy** check box to create the hierarchy as a non-mandatory hierarchy. For more information about hierarchy types, see [Explicit Hierarchies (Master Data Services)](../master-data-services/explicit-hierarchies-master-data-services.md). 8. Click **Save**. ## Grid Columns For each explicit hierarchy that you create, a row with seven columns is added to the grid. The following is a description of the columns. |Name|Description| |----------|-----------------| |Status|The entity status. When you click **Save** the following image is displayed that indicates that the entity is updating.

![Icon for updating status](../master-data-services/media/mds-statusicon-updating.png "Icon for updating status")

If there are errors when creating or editing an entity, the following image is displayed.

![Icon for error status](../master-data-services/media/mds-statusicon-error.png "Icon for error status")

If the status is OK, then the following image is displayed.

![Icon for OK status](../master-data-services/media/mds-statusicon-ok.png "Icon for OK status")| |Name|The explicit hierarchy name.| |Is Mandatory|Specifies whether the explicit hierarchy is mandatory.| |Created By|The username of the user who created the explicit hierarchy.| |Created On|The date and time when the explicit hierarchy was created.| |Updated By|The username of the user who last updated the explicit hierarchy.| |Updated On|The date and time when the explicit hierarchy was last updated.| ## Next Steps - [Create a Consolidated Member (Master Data Services)](../master-data-services/create-a-consolidated-member-master-data-services.md) ## See Also [Explicit Hierarchies (Master Data Services)](../master-data-services/explicit-hierarchies-master-data-services.md) [Derived Hierarchies with Explicit Caps (Master Data Services)](../master-data-services/derived-hierarchies-with-explicit-caps-master-data-services.md) [Change an Explicit Hierarchy Name (Master Data Services)](../master-data-services/change-an-explicit-hierarchy-name-master-data-services.md)